/******************************************************************************* * Copyright (c) 2007, 2012 Association for Decentralized Information Management * in Industry THTH ry. * All rights reserved. This program and the accompanying materials * are made available under the terms of the Eclipse Public License v1.0 * which accompanies this distribution, and is available at * http://www.eclipse.org/legal/epl-v10.html * * Contributors: * VTT Technical Research Centre of Finland - initial API and implementation *******************************************************************************/ package org.simantics.browsing.ui.swt; import org.eclipse.swt.widgets.TreeItem; import org.simantics.browsing.ui.common.internal.UIElementReference; /** * @author Tuukka Lehtonen */ public class TreeItemReference implements UIElementReference { private final TreeItem item; public static TreeItemReference create(TreeItem item) { return new TreeItemReference(item); } private TreeItemReference(TreeItem item) { this.item = item; } public TreeItem getItem() { return item; } @Override public boolean hasReference() { return item != null; } @Override public boolean isDisposed() { if (item == null) return true; return item.isDisposed(); } @Override public String toString() { if (item == null) return "(" + String.valueOf(System.identityHashCode(this)) + ":no item)"; return "(" + String.valueOf(System.identityHashCode(this)) + ":TreeItem@" + System.identityHashCode(item) + ")"; } }